Whittet Higgins NSHM-28 Shoelok Tangential Locking Retaining Nut
- Regular price
- $511.21
- Sale price
- $511.21
- Regular price
-
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| Quantity | Discount |
|---|---|
| 1 Unit | No Discount |
| 20-49 Units | 5% |
| 50-99 Units | 8% |
| 100-199 Units | 15% |
| 200-499 Units | 18% |
| 500+ Units | 25% |
Key Features
- Hardened alloy base threaded nut, locking shoes, and fasteners for high axial loading capacity
- Mechanically self-locking via three tangential socket-head cap screws torqued in a bolt-circle pattern
- Internally threaded shoes press radially inward for uniform 360-degree thread clamping to the center of the shaft
- Tangential (X-axis) access for locking and adjustment of the assembly
- Infinite adjustment and preloading capability; does not damage shaft threads when secured
- Resists loosening due to vibration, shock, and torque; balanced for high-speed applications
- Maximum operating temperature 300 degrees F
- Meets and exceeds ISO 2982-2:2013(E)
- Manufactured in USA and RoHS compliant
Description
The Whittet-Higgins NSHM Series Shoelok is a metric, mechanically self-locking bearing retaining nut machined entirely from hardened alloy. It threads onto a shaft or spindle and locks by means of three tangential socket-head cap screws that, when torqued in a bolt-circle pattern, press three internally threaded locking shoes radially inward against the shaft threads, providing uniform 360-degree clamping to the center of the shaft without damaging the threads.
Tangential (X-axis) access lets the assembly be locked and adjusted from the side, making the Shoelok ideal for positioning and retaining bearings and other components on high-speed, high-precision assemblies with infinite preload adjustment. The hardened-alloy construction delivers high axial loading capacity and resists loosening from vibration, shock, and torque. The NSHM Series meets and exceeds ISO 2982-2:2013(E) and is manufactured in the USA.
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This message only appears in theme editor.Specifications
NSHM-28
| Specification | Value |
|---|---|
| Series | Whittet-Higgins NSHM Series |
| Thread | M140 x 2.0 |
| Nominal Thread Diameter | 5.512 in (140 mm) |
| Outside Diameter | 180.1 mm (7.091 in) |
| Face Diameter | 165.9 mm (6.531 in) |
| Width | 30.2 mm (1.189 in) |
| Clamp Screw | 3/8-16 |
| Suggested Tightening Torque | 270 N·m |
| Theoretical Axial Holding Capacity | 1406 kN |
| Material | Carbon Steel (alloy fastener) |
| Standard | ISO 2982-2:2013(E) |
| Weight (approx.) | 4.92 lb (2231.673 g) |
| Country of Origin | USA |




